49091509 has 8 divisors (see below), whose sum is σ = 50494400. Its totient is φ = 47700576.

The previous prime is 49091501. The next prime is 49091513. The reversal of 49091509 is 90519094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49091509 - 2³ = 49091501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49091501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5689 + ... + 11425.

It is an arithmetic number, because the mean of its divisors is an integer number (6311800).

Almost surely, 2^49091509 is an apocalyptic number.

It is an amenable number.

49091509 is a deficient number, since it is larger than the sum of its proper divisors (1402891).

49091509 is a wasteful number, since it uses less digits than its factorization.

49091509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5979.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 49091509 is about 7006.5333082774. The cubic root of 49091509 is about 366.1582248586.

The spelling of 49091509 in words is "forty-nine million, ninety-one thousand, five hundred nine".